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  • Takashi Iwai's avatar
    ALSA: hda/realtek - Keep the channel count for multiple speakers · b6adb57d
    Takashi Iwai authored
    The current Realtek driver reconfigures the max PCM channels
    dynamically according to the value of Channel Mode enum if the
    multi-io retasking is available.  It works fine for multi-io pins.
    But when multiple speaker pins are available, the channels of speakers
    also have to obey to the channel mode, which isn't nice.
    (That is, when you select "2ch" in Channel Mode so that the line-in
     and mic jack behave as input, you can't play surrounds properly from
     the built-in speaker.)
    This patch fixes the problem by taking the channel number for multiple
    speakers into account in the channel-mode setup code.
    Also it fixes the wrongly set up max_channels value in the case of
    multi-io extension.
    Signed-off-by: default avatarTakashi Iwai <>